Explore our core rotary desiccant dehumidifiers, turnkey dry room enclosures, closed-loop chemical capture plants, and specialized climate-control units designed for continuous 24/7 reliability.
DP -70°C Control
DHU rotary desiccant series engineered for ultra-deep dehumidification down to -70°C dew point. Features heat-recovery regeneration to slash operational utility loads in battery and pharma facilities.
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Turnkey EPC
Comprehensive environmental enclosure architecture including airtight partition systems, low-leakage ductwork, advanced PLC logic, and continuous psychrometric instrumentation under a single contract.
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Recovery ≥99%
High-efficiency solvent condensation and Zeolite rotor recovery capturing N-Methyl-2-pyrrolidone from electrode coating ovens. Reduces hazardous VOC emissions and recaptures valuable raw chemical materials.
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RTO + Cooling
Deep-cooling condensation coupled with Regenerative Thermal Oxidizers (RTO) to eliminate hazardous VOC waste gases, strip volatile organics, and achieve total environmental regulatory compliance.
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Energy Optimized
Dual-rotor cascade desiccant dehumidifiers tailored for high latent heat extraction in subtropical climates, ensuring unwavering stability for solid-state electrolyte development.
Technical Specs
Gigafactory Grade
Modular clean dry room solutions tailored for cell stacking, winding, and automated electrolyte filling zones with strict containment of personnel moisture infiltration.
Project Details
Zero-Leak Design
Integrated chemical vapor absorption and condensation trains designed for gigawatt-hour electrode coating lines with integrated heat recovery exchangers.
Exhaust Systems
High Efficiency
Heavy-duty refrigerative dehumidifiers serving as pre-cooling stages to condense bulk atmospheric moisture prior to desiccant rotor adsorption, protecting raw storage warehouses.
Explore RefrigerativeWhy modern advanced manufacturing demands relentless control over psychrometric limits: from lithium battery gigafactories to active pharmaceutical synthesis.
The global transition to electrification has triggered massive capital expenditure in lithium-ion and solid-state battery gigafactories. Electrolytes such as LiPF6 hydrolyze instantly when exposed to moisture levels above -40°C dew point, producing corrosive hydrofluoric acid (HF) that compromises cathode integrity, cycle life, and thermal stability. Environmental rooms are no longer simple HVAC installations; they are yield-critical chemical reactors.
Thermal regeneration of desiccant wheels accounts for up to 45% of total facility energy demand in battery dry rooms. The global industrial sector faces strict carbon-accounting mandates and volatile power tariffs. State-of-the-art systems leverage closed-loop secondary heat recovery, waste heat condensation recycling, and variable-frequency rotor drive algorithms to shrink power consumption per standard cubic foot of treated air.
Next-generation lithium-metal anodes and sulfide-based solid-state electrolytes exhibit catastrophic breakdown when exposed to even fractional moisture traces. This is forcing industrial engineering standards down to -60°C and -70°C dew points across massive processing volumes (100,000+ CMH), establishing unprecedented requirements for airtight wall envelopes, airlocks, and predictive psychrometric automation.
Specifying the wrong humidity envelope results in degraded product yields or excessive operational expenditure. Use these verified parameters across target manufacturing domains.
| Industrial Application | Target Dew Point / RH | Moisture Criticality Mechanism | Recommended Technology Suite |
|---|---|---|---|
| Lithium-ion Cell Assembly & Filling | -40°C to -60°C DP | Prevents hydrolysis of LiPF6 and lethal HF gas generation. | Turn-key Low Dew Point Dry Room System |
| Next-Gen Solid-State & Li-Metal Cells | Down to -70°C DP | Prevents degradation of sulfide electrolytes and lithium tarnishing. | DHU Dual-Rotor Ultra-Dry Desiccant Unit |
| Cathode/Anode Slurry & Coating Exhaust | ≥99% Recovery | Closed-loop capture of costly N-Methyl-2-pyrrolidone solvent. | ZJRH NMP Solvent Recovery Plant |
| Hygroscopic Pharma & Dry Powders | 10% – 30% RH | Eliminates powder agglomeration, clumping, and microbial growth. | Sanitary Desiccant Air Handling Unit |
| Aerospace Composites & Defense Storage | ≤40% RH | Halts galvanic corrosion, avionics oxidation, propellant instability. | GJB-Compliant Environmental System |
| Raw Material Staging & Pre-cooling | 45% – 60% RH | Condenses bulk atmospheric moisture before secondary dry stages. | Refrigerative Dehumidifier Skid |
| Petrochemical Fuel Storage & Solvent Vapors | VOC Limits Compliant | Recovers volatile organic emissions during bulk terminal loading. | JEN VOC Abatement & RTO Station |
Founded in 2010 in Lin'an, Hangzhou, DryAir ranks among the top three desiccant dehumidification equipment manufacturers in China, backed by verified gigafactory operational data.
Every industrial unit leaves our facility certified under ISO 9001 and the GJB national military standard. Units exported globally comply with CE, UL, CSA, ASME, and EAC standards.
Our Lin'an R&D center houses a full-scale environmental simulation test chamber, validating dew points, air-leakage rates, and airflow distribution across extreme ambient temperature and humidity shifts.
We deploy on-site engineering crews worldwide for erection, balancing, testing, and commissioning, backed by an optional two-year comprehensive international service agreement.
A rigorous, accountable turnkey delivery framework keeping facility planners, contractors, and cleanroom operators aligned from initial RFQ to final dew point validation.
Assessment of production volume, door openings, personnel headcounts, exhaust requirements, and target dew points.
Psychrometric modeling, airflow duct CFD analysis, regenerative heat recovery layout, and full BIM coordination.
In-house manufacturing of desiccant rotors, air handling enclosures, piping skids, and rigorous pre-shipment FAT tests.
On-site panel erection, airtight sealing, dynamic balancing, control tuning, and multi-sensor dew point sign-off.
Continuous SCADA diagnostics, predictive maintenance schedules, consumable replacement, and optional 2-year warranty plans.
Continuous innovation addressing energy consumption, predictive artificial intelligence, and zero-carbon battery manufacturing.
Deployment of real-time machine learning algorithms that forecast incoming ambient weather fronts and worker shift changes, automatically modulating rotor RPM and regeneration heat to eliminate dew point overshoot and curb wasted power.
Development of proprietary metal-organic frameworks (MOFs) and high-density silica gel-zeolite composites that desorb moisture at lower temperatures (80°C–90°C), slashing thermal energy inputs compared to traditional 130°C–140°C regeneration systems.
Advanced thermal integration packages coupling NMP solvent recovery condensing heat and plant-wide industrial flue gases directly into desiccant regeneration coils, lowering net electrical consumption toward zero.
Prefabricated modular dry room climate stations factory-assembled inside ISO standard containers, allowing hyper-fast field connection, reducing commissioning schedules from months to weeks for remote battery plants.
Operational principles, preventative maintenance guidelines, and design strategies direct from our field engineers.
Step-by-step mechanical analysis of refrigeration-based condensation stages designed to strip volatile petroleum vapors during terminal storage and transfer loading before atmospheric exhaust.
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Addressing zeolite wheel fouling, heat exchanger condensate balancing, and sensor calibration to guarantee steady ≥99% chemical recapture rates during round-the-clock electrode coating operations.
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Analysis of relative humidity thresholds in pneumatic powder conveyance, tablet compression presses, and blistering packaging lines to meet international cGMP regulatory standards.
Download Pharma PaperDirect answers addressing procurement, installation, certification, and psychrometric validation.
DryAir rotary desiccant dehumidifiers achieve down to a guaranteed -70°C dew point (equivalent to less than 0.0033 grams of moisture per kilogram of dry air). This satisfies the most rigorous international standards for lithium battery winding, assembly, electrolyte filling, and next-generation sulfide solid-state cell labs.
Yes. Hangzhou DryAir provides full turnkey (EPC) dry room execution globally. We cover pre-project computational consulting, modular architectural partition supply, HVAC duct integration, desiccant air handlers, automation control systems, on-site commissioning, and performance sign-off. We have successfully delivered installations for clients including Tesla, Northvolt, and TTI.
Depending on export destination and project specifications, DryAir systems are supplied fully certified to CE (Machinery & Low Voltage Directives), UL 1995/CSA standards for North American electrical safety, ASME pressure vessel standards for heat exchangers, and EAC marks for Eurasian regions. The company strictly operates under ISO 9001 and the GJB national military standard quality management systems.
DryAir ZJRH series NMP recovery plants achieve a solvent recovery rate of ≥99% from cathode electrode coating ovens. This dramatically lowers solvent re-purchasing costs while reducing exhaust emissions below the strictest global environmental standards.
Overseas clients have access to an optional comprehensive two-year service agreement. This includes direct remote SCADA diagnostic assistance, rapid-dispatch replacement components, periodic preventative audits, and on-site engineering intervention by our field service team. Learn more via our Global Service Network.
Review additional system specifications and request custom CAD layout models, sizing calculations, and commercial tender proposals.
Silica / Molecular
Compact rotary dehumidification modules for specialized pilot manufacturing, moisture testing rooms, and critical packaging environments.
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Airtight Cleanroom
High-integrity insulated cleanroom sandwich panels, self-sealing interlock air showers, and pass-boxes built to eliminate air leakage.
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Purity Guaranteed
Advanced closed-loop distillation systems that process collected NMP liquid into battery-grade raw chemical purity for immediate slurry reuse.
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Thermal Efficiency
High-destruction efficiency RTO units engineered to oxidize complex industrial VOC exhaust streams while capturing excess exothermic heat.
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GMP / FDA Ready
Sanitary stainless-steel construction with smooth internal wash-down surfaces, anti-microbial seals, and HEPA terminal filter integration.
Pharma Solutions
Ultra-Dry -70°C
Specialized low-permeation environmental rooms engineered specifically for pilot and full-scale solid electrolyte and lithium foil handling.
Solid-State Rooms
Environmental EPC
Complete turnkey ducting and air purification skids capturing volatile organics directly at point-of-emission in high-throughput plants.
Exhaust Treatment
Pre-Cooling Skid
High-capacity mechanical refrigeration dehumidifiers engineered for bulk moisture reduction in warehouses and commercial storage depots.
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